baber/WOPTO huggingface dataset:
Patent JP-H05251812-A (JP)
Title: Distributed-feedback semiconductor laser with quantum well structured optical modulator and manufacture thereof
Inventor: WAKITA KOICHI
IPC: G02F1/025
Filed: 1992-03-06
Abstract: PURPOSE:To provide an integrated light source capable of smoothly connecting the refractive indices of MQW structures in different effective forbidden band width energies by providing a separating part in the third clad layer. CONSTITUTION:The title distribution feedback type semiconductor laser is provided with an active layer 26 arranged on a substrate 20, a distributed-fedback laser part 12 having the first upper and lower clad layers 30, 24 and an optical modulator 13 having the second clad layers 36, 32 holding the second waveguid layer 34 coupled with the semiconductor laser part 12. The semiconductor laser part 12 and the optical modulator 13 have the third clad layer 38 while the multiquantum well structures 26, 34 are isolated from each other on a surface perpendicular to the waveguide direction as well as optically connected in a photocoupling region 16 through the intermediary of the first and second lower clad layer 24, 32. Furthermore, this semiconductor laser commonly holds the ends only opposite to the interface 17 of the first and second semiconductor parts 14, 15 of the multiquantum well structures 26, 34 while the third clad layer 38 is provided with an isolation part 40 arranged along the region including the opposite ends 14A holding the interface 17.
Patent JP-H07236261-A (JP)
Title: Brushless motor
Inventor: KANEDA ISAO
IPC: H02P6/20
Filed: 1994-02-22
Abstract: PURPOSE:To obtain high reliability on starting and high torque without requiring a contrivance on complicate structure. CONSTITUTION:A stator 26 constituted by winding coils on each tee 38 of stator cores 22 having a plurality of slots and an annular-shaped rotor magnet 30, which is mounted rotatably while being oppositely faced to the stator 26 and in which unlike poles are arrayed alternately in the peripheral direction, are provided, and the stator core 22 is configured by directional steel plates.
Patent JP-H11208149-A (JP)
Title: Folding, portable book opening tool without using hand
Inventor: HANEDA TAKESHI
IPC: B42D9/00
Filed: 1998-01-27
Abstract: PROBLEM TO BE SOLVED: To provide a tool for keeping a book open which is folding, compact and lightweight and does not hinder characters to be read and does not damage the book and makes it possible to go back and forth at least two pages being a page and another page 10 pages ahead and can keep the book open even when a half of the book is protruded from a desk so as to use widely a narrow desk among tools for keeping the book empty-handed open on a table. SOLUTION: This portable book opening tool without using hands provides a hair pin type holder 2 pinching pages from a cover to a page to be opened on one end of a hard plate being sufficiently longer than the transverse width of a book to open the page by the wt. of the book by using one or two pieces of this plates and placing the plates under the book. In this case, this plate part can be folded by a folding type, a rotating type, a sliding type a dividing type, etc., when it is not used and another or more holders 5 are added above the holder 2 to make it possible to go back and forth at least two pages.
Patent JP-S62247753-A (JP)
Title: Brake equipment
Inventor: INOUE KIYOSHI
IPC: H02K49/02
Filed: 1986-03-07
Abstract: PURPOSE:To enable a brake equipment to make finer adjustment of braking force by moving a flux generator and by controlling the flux that goes through a disc. CONSTITUTION:Under the condition where magnets 3 and 4 are off a disc 2, no braking force can be exercised to an axis of rotation 1 because of the less flux number to go through the disc 2. When an operational lever 9 is moved and displaced, a rod 10 goes towards right against the force of a presser spring, by which magnets 3 and 4 come closer to the disc 2. Thus the number of lines of through flux between magnets 3 and 4 will increase. When the axis of rotation 1 is rotating, the eddy current is generated. So is the electric braking force. The less the clearance is between the disc 2 and the magnets 3 and 4 proportional to the control input of the operational lever 9, the more powerful gets the braking force. By adjusting the control input of the operational lever 9, the braking force can therefore be finely adjusted.
Patent JP-H07256376-A (JP)
Title: Heat sink and its manufacture
Inventor: KATO SHUICHIRO
IPC: B21D53/02
Filed: 1994-03-22
Abstract: PURPOSE:To provide a heat sink having a simple and strong structure and a uniform structure by inserting an end part of each rod-shaped fin into each of a number of through holes, and densely filling the space between the end part and the wall of the through hole with solder to realize the joining with a base plate. CONSTITUTION:An end part 31 of a rod-shaped fin 3 is inserted into a through hole 21 in a base plate, and the structure is immersed in the molten solder 5 to allow the solder 5 to be filled in the space by the ultrasonic vibration in a very simple manner. Because the solder 5 is filled in the space by applying the ultrasonic vibration, the solder 5 enters to every part in the space sufficiently to allow the joining of the rod-shaped fin 3 with the base plate 2 without any trouble. Because the rod-shaped fin 3 is joined with the base plate 2 with the solder 5 which sufficiently enters the every part of the space in the obtained heat sink, the joining is strong, and the work is done only by inserting the end part of the rod-shaped fin 3 into the through hole 21 of the base plate 2 to be joined with each other.
Patent JP-2000252151-A (JP)
Title: Capacitor
Inventor: FUJIMORI HIROYUKI
IPC: H01G4/12
Filed: 1999-02-26
Abstract: PROBLEM TO BE SOLVED: To provide a capacitor, capable of achieving high capacitance and low inductance. SOLUTION: In this capacitor 10, a lower electrode layer 2 and an extended part 2a are coated and formed on an insulating substrate 1. A dielectric layer 3 is coated and formed on the lower electrode layer 2. An upper electrode layer 4 is coated and formed on the dielectric layer 3. An insulating protection film 5 for exposing the part of the upper electrode layer 4 in the central part, and the extended part 2a of the lower electrode layer 2 at edges is coated and formed on the upper electrode layer 4. External terminal electrodes 6a, 6b are formed in the exposed area of the insulating protection film 5.
Patent JP-S63216743-A (JP)
Title: Print original plate process method and printing sheet
Inventor: KASHIO YUKIO
IPC: B41C1/00
Filed: 1987-03-06
Abstract: PURPOSE:To obtain a copy with a sharpness and a fidelity to an original image, by a method wherein, an electric recording signal on the basis of an original image part is applied to an electric discharge recording needle while a scanning is carried out on a printing sheet with the discharge recording needle and, thereby, a light- transmitting image part corresponding to the original image part is formed on a light-reflecting film layer by electric discharging. CONSTITUTION:For example, at a white part of an original 11, a low-level voltage is applied, thus preventing the discharge by a discharge recording needle 34 from occurring. On the other hand, at a black part of the original 11 (each point of an original image part 11a), a high-level voltage is applied, thus inducing a discharge breakdown which forms a hole on a metal deposition layer A1 at a position pointed by the discharge recording needle 34. As a result, a recessed part, i.e. a light transmitting image part A4, is formed on a printing sheet 31 only at a part corresponding to the original image part 11a of the original 11, and then an original plate is formed. When the plate is made with the discharge recording needle 34 in contact with the printing sheet, the printing sheet 31 is so constructed as to have a three-layer structure where a thin electric insulating layer A3 is formed on the metal deposition layer A1, and a discharge-scanning recording is carried out on the electric-insulating layer A3 with the discharge recording needle 34 keeping a certain degree of needle pressure.
Patent JP-S55143670-A (JP)
Title: Postage processing system for mail
Inventor: NISHIMURA YOSHIHARU
IPC: G06Q50/00
Filed: 1979-04-24
Abstract: PURPOSE: To improve workability by making it easy to make sure of overweight, etc., by calculating postage according to data on the weight of mail, the method of transporting, its transportation area, etc., and then by displaying the charge data and weight data both on display units.  
     CONSTITUTION: The postage processing system consists of metering part 1 which weighs mail and outputs its weight data, postage calculation part 2 equipped with keyboard 6 by which the method of transporting is selectively set and the 2nd display unit 5, and voucher issuing machine 3 having display unit 7 displaying postage, voucher issuing outlet 9, etc. This postage calculation part 2 is provided with a setting part where maximum transportation weight data are set and the method of comparing the weight data weighed by metering part 1 to the maximum transportation weight data set in the setting part. When the result of the comparison obtained by this comparing method shows that the maximum transportation weight data is less, the overweight data is calculated and displayed on display unit 4 of metering  part 1, display part 5 of charge calculation part 2 and display part 7 of issuing  machine 3 together with the transporting charge. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-S59175589-A (JP)
Inventor: SAKAMOTO KAZUHO
IPC: H05B6/68
Filed: 1983-03-25
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent JP-S63217902-A (JP)
Title: Control system for motor for driving electric railcar
Inventor: YOSHINORI NAOTO
IPC: B60L15/20
Filed: 1987-03-05
Abstract: PURPOSE:To easily and effectively eliminate the slip of wheels in an electric railcar by so reducing the target value of an armature current as to decrease a motor output while an unbalance exists in a magnetic field current between DC series motor groups. CONSTITUTION:If a specific wheel driven by first DC series motor group slightly slips, the armature current of the motor group in which the slip occurs decreases, and a deviation occurs between the armature current and a target current value. In order to eliminate the deviation, a current flowing to the first field winding group 12 is reduced. Thus, a difference occurs between the current of the first group and the field current of a second DC series motor group. A comparator 33 detects the difference of the field currents of the motor groups detected by field current detectors 31, 32, and applies a field current unbalance signal to a current setter 34. The setter 34 decreases the target current value by the unbalance detection signal.
Patent JP-S54142088-A (JP)
Title: Linear polarized gas laser tube
Inventor: SHINTAKU KEIICHI
IPC: H01S3/034
Filed: 1978-04-27
Abstract: PURPOSE:To obtain a low-cost and high-productibity gas laser tube by fixing the polarizing face control glass face plate to the springy metal component and then inserting and fixing the assembly into the vacuum ambient unit. CONSTITUTION:Polarizing face control glass face plate 4 is attached to the central slope part of springy metal component 8 formed into N-shape so as to block the  center hole of the slope part, thus forming glass face plate assembly 9. Assembly 9 is contracted with the external force applied to both outer bar 8a and 8b of the N- shape and then inserted into support tube 5 prior to attachment of optical resonance mirror 3b to be then fixed to the inner wall of tube 5 by the force of the spring and with elimination of the external force. As a result, such inefficient work that the right edge part of laser thin tube 1 is polished into a Brewster's angle and thick tube container 2 is attached after attachment of the glass face plate can be eliminated along with the contamination on the glass face plate. Thus, the productivity  can be increased.
Patent JP-H08245167-A (JP)
Title: Lifting gear of ultra low temperature liquefied gas cylinder
Inventor: WADA SATOSHI
IPC: B66C1/62
Filed: 1995-03-10
Abstract: PURPOSE: To provide a lifting gear that is able to accord an axis of this lifting gear at the time of lifting an ultra low temperature liquefied gas cylinder and conveying it easily with that of this gas cylinder, and performing the conveyance of this cylinder easily and safely. CONSTITUTION: In this lifting gear 11, having an engaged pawl 16 to be engaged with a handle part 3 of an ultra low temperature liquefied gas cylinder 1 and being liftably installed in an overhead traveling crane or the like, a light emitting part 22 applying a light in the vertical direction is installed in a central position of the engaged pawl 16.
Patent JP-H03253043-A (JP)
Title: Wire bonding device
Inventor: MATSUMOTO ITARU
IPC: H01L21/60
Filed: 1990-03-02
Abstract: PURPOSE:To obtain a stable bonding by a method wherein when a current of a certain value or higher flows through a coil after a capillary is changed- over, contact of the capillary with a bonding pad is detected. CONSTITUTION:A targeted orbit set so as to make a capillary 3 movable in a short time is previously fed to a servo circuit 11 by an orbit generating circuit 10 until the capillary 3 is made to descend to a prescribed height from a semiconductor pellet 9 from over the pellet 9. A control signal outputted from the circuit 11 is selected by a change-over circuit 13, passes through a drive circuit 14, a moving coil 4 is driven and the capillary 3 is actuated according to the targeted orbit. When the capillary 3 reaches to the prescribed height, a targeted orbit for moving the capillary 3 at a low-speed constant speed is outputted from the circuit 10 and the capillary 3 is made to descend until it comes into contact with the pellet 9 at the low-speed constant speed. When the capillary 3 comes into contact with the pellet 9, a swinging motor 15 is actuated and it is detected 16 that a current larger than a threshold current flows through the coil 4 after an elapse of a constant time.
Patent JP-H01282202-A (JP)
Title: Tertiary aminoalkyl-hydroxyalkyl ether of polygalactomannan
Inventor: DENISU JIEI KAACHIYAA
IPC: C09K3/00
Filed: 1989-03-02
Abstract: PURPOSE: To produce the compound comprising a dialkylaminoalkyl ether- hydroxyalkyl ether derivative of a polygalactomannan to thicken or to gelate aqueous fluids effectively.  
     CONSTITUTION: The compound is a dialkylaminoalkyl ether-hydroxyalkyl ether derivative of a polygalactomannan (e.g. guar gum, locust gum, America honey locust gum) and preferably to be a compound where a degree of substitution(DS) of a tertiary aminoalkyl ether group is 0.004-0.1 and a degree of molecular substitution(MS) of a tertiary hydroxyalkyl group is 0.3-1.0. A dimethylaminoisopropylether group is preferable as the dialkylaminoalkyl ether and a hydroxyisopropyl group is most preferable as the hydroxyalkyl group. The viscosity of the aqueous fluid thickened or gelated by the compound is reduced by addition of an alkali(earth) metal salt of hypochlorous acid or chlorinated isocyanurate. 
     COPYRIGHT: (C)1989,JPO
Patent JP-H11251586-A (JP)
Title: Field-effect transistor
Inventor: FURUTA HIROSHI
IPC: H01L29/51
Filed: 1998-03-03
Abstract: PROBLEM TO BE SOLVED: To provide a field-effect transistor which positively utilizes an oxide film and has adequate characteristics easy to manufacture. SOLUTION: The gate of this field-effect transistor is constituted of an Si substrate 1, oxide film 2, a ferroelectric 3, and a metal electrode 4. The ferroelectric 3 uses a material having a product of less than 15.6 megavolts/cm. or a film thickness for the specific dielectric const. of the ferroelectric 3 and electric field applied to the ferroelectric 3. The ferroelectric 3 is formed on the oxide film 2, hence facilitating the manufacture. By having the specific dielectric const. of the ferroelectric 3 reduced, the electric field applied to the oxide film 2 becomes less than 4 megavolts/cm, capable of being ensured that the oxide film 2 does not break.
Patent JP-H11247870-A (JP)
Title: Cylindrical roller bearing with heat insulation sleeve and fixing device
Inventor: MATSUYAMA SHIGEJI
IPC: F16C35/07
Filed: 1998-03-03
Abstract: PROBLEM TO BE SOLVED: To provide a roller bearing with a heat insulation sleeve having a flange, compact and of a nonseparable type and a fixing device using this roller bearing. SOLUTION: Side plates 21, 22 are formed on both sides of an outer ring 23 of a cylindrical roller bearing 20, a flange member 24 is press fitted and fixed on an outer diametrical surface of this outer ring 23, and a bent part 25 a head end diameter of which is larger than an inside diameter of the side plate 21 is formed on an inner ring 26 extended outward of the side plate 21. A flange 31 an outside diameter of which is larger than an inside diameter of the side plate 22 is provided on one end side of a heat insulation sleeve 29, and a projection 30 a head end diameter of which is larger than an inside diameter of the inner ring 26 is provided on the other end side.  The outer ring 23 and the inner ring 26 are made nonseparable by fitting the inner ring 26 between the flange 31 and the projection 30 and the both side plates 21, 22 between the flange 31 and the bent part 25 of the inner ring 26.
Patent JP-S55143327-A (JP)
Title: Liquid fuel burner
Inventor: KATOU YOSHIO
IPC: F23D3/28
Filed: 1979-04-25
Abstract: PURPOSE: To enable to afford a reaction force for closing a shield plate required in lowering wick of a burner, by employing an arrangement in which a predetermined reaction force can be accumulated in a return spring without fail.  
     CONSTITUTION: A sliding pin 33 of a driving disk 29 disposed on the side of a burner basket 4 is inserted into a hole formed in a wick holder 31 which is disposed on the side of a fixed tank 1. The burner basket 4 is fixed to the fixed tank 1 by turning the burner basket 4 in the above state. Resultantly, a predetermined reaction force can be stored, without fail, in a return spring 51 for providing a force for closing a shield plate required in lowering the burner wick. In assembly, the return spring 51 and the burner basket 4 can be both assembled in place in the state that reaction force acted thereto is zero. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-H03253764-A (JP)
Title: Fuel feed device for engine
Inventor: ITO TERUYUKI
IPC: F02M29/00
Filed: 1990-03-02
Abstract: PURPOSE:To accelerate the atomization of fuel and improve combustibility by providing an air injection means near the nozzle of a fuel feed means arranged on the intake passage of an engine, and injecting compressed air from the air injection means when a wall stream of fuel near an intake port is detected by a detecting means. CONSTITUTION:A wall stream sensor 10 is provided on an intake port opened or closed by an intake valve 2. The wall stream sensor 10 is constituted of a light emitting element generating the ultraviolet light with the preset wavelength and radiating it to a wall stream detecting point in a beam shape via a reflecting mirror and a light receiving element receiving the reflected light. The signal from the wall stream sensor 10 is guided to a photo-electric converter 42 via a signal line passing a wall stream sensor guide 41 formed on a cylinder head 42, and the converted electric signal is inputted to a control unit 43. When the occurrence of the wall stream is detected here, a motor-driven air pump 44 is driven, compressed air is injected from an air feed passage 45 arranged near the nozzle of an injector 9, and the atomization of fuel is accelerated.
Patent JP-S63235290-A (JP)
Inventor: TOKUYAMA TAKASHI
IPC: B66B23/12
Filed: 1988-03-03
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent JP-H06243689-A (JP)
Title: Optical signal recording device
Inventor: IWASAKI MASANORI
IPC: G06E3/00
Filed: 1993-02-18
Abstract: PURPOSE:To obtain a method by which an optical signal is recorded in a state of an optical signal and an optical signal having strong intensity is outputted, in an optical signal recording device being suitable to an optical computer. CONSTITUTION:A light source, an optical signal transmitting device 11 and optical switch elements 13-16 are combined by an optical waveguide 17. Since an input signal is recorded in a state of optical signal independently of a digital signal or an analog signal, an electrical conversion section is not required and a simple device can be realized. This fact is suitable to an information recording medium such as an optical computer and an optical communication means. Also, since an optical signal is recorded supplying light between an element 13 and an element 14, a recorded optical signal is not degraded. And when an optical signal is outputted, it is amplified and can be outputted as a signal having strong intensity.
Patent JP-H07231988-A (JP)
Title: Travel toy
Inventor: WATANABE SABURO
IPC: A63H29/22
Filed: 1994-02-24
Abstract: PURPOSE:To allow a person to enjoy a travel toy even at a place where there are slopes and obstacles, by providing a reversible motor, a receiver by which the motor is operated forward and in reverse corresponding to control signals, a bobbin on which a string is wound, and a power transmitting mechanism. CONSTITUTION:A toy main body 3 contains a receiver 34, a battery 35, a motor 36, a bobbin on which a string 5 is wound, and a power transmitting mechanism which transmits power of the motor 36 to wheels 30 and the bobbin. The transmitting mechanism consists of a left wheel driving mechanism that drives the left wheels 30, a right wheel driving mechanism that drives the right wheel 30, a winch mechanism that rotates the bobbin and a selecting switch mechanism which selectively brings either one of the left wheel driving mechanism, the right wheel driving mechanism or winch mechanism into operation.
Patent JP-H10246902-A (JP)
Title: Camera with shake correction function
Inventor: SHINTANI MASARU
IPC: G03B5/00
Filed: 1997-03-06
Abstract: PROBLEM TO BE SOLVED: To provide a camera with shake detection function that hardly has a release time lag. SOLUTION: This camera is provided with a sub microcomputer 60 performing control on shake correction separately from a main microcomputer 40 controlling the operation of the camera. The microcomputer 40 starts arithmetic operation according to an exposure preparation start signal and calculates a photometric value. The sub microcomputer 60 starts the arithmetic operation simultaneously and concurrently with the main microcomputer 40 according to the exposure preparation start signal and calculates shake amount. The microcomputers 40 and 60 respectively compare the calculated photometric value or the shake amount with respective values within a previously set specified range so as to decide whether exposure is possible or impossible.
Patent JP-S59188823-A (JP)
Title: Discriminator for lifetime of magnetic head
Inventor: IIDA YASUNOBU
IPC: G01R27/26
Filed: 1984-03-16
Abstract: PURPOSE:To eliminate the need for multiplex scales and to prevent the misreading of the indicated value by using an electrical circuit element which can be varied between small and large sizes and at the same time providing each potentiometer for control of the input potential. CONSTITUTION:Electrical circuit elements 21A and 21B having variable levels at the value close to the lifetime as reference inductances. Then potentiometers 22A and 22B are put into the next stage of a detector 13 to control the input potential of an n channel field effect transistor 14 as a means which controls the relative sensitivity of the current supplied to an indicator 16 of a meter, etc. The variable element 21B is varied to control the potential difference of a point (b). Thus the potential difference is set at the same level between the gap depths D1 and D2 at the point (b). Then the potential of a point (c) is controlled to the same potential as that obtained with a magnetic head A at the limit of lifetime by a potentiometer 22B. Otherwise the meter pointer is set at the scale of the indicator 16.